The details on Sonic Air Duct
- WA L&I registration
- SONICAD746K1
- Registration checked
- July 27, 2026
- Registered since
- 2026
- Expires
- May 2028
- Contractor bond
- $30,000 · Western Surety Co
- Liability insurance
- $1,000,000 · Hartford Underwriters Ins Co
- Insurance through
- April 2027
- Primary trade
- General Contractor
- L&I specialty
- GENERAL
- Service area
- Spokane
- Phone
- (425) 224-2443
- Website
- sonicairduct.com
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Questions worth asking Sonic Air Duct
Is Sonic Air Duct licensed in Washington?
Sonic Air Duct holds Washington State (L&I) contractor registration SONICAD746K1, expiring May 2028. We verified it against the state record on July 27, 2026, and you can check the same number on Washington's contractor lookup in about a minute. L&I also lists a $30,000 contractor bond (Western Surety Co) and $1,000,000 of liability insurance with Hartford Underwriters Ins Co through April 2027. Ask for proof of bond and current insurance before work starts.
What areas does Sonic Air Duct serve?
Spokane. Service areas change, so confirm they cover your address when you call.
How did Sonic Air Duct end up on this page?
Sonic Air Duct is licensed and working in the Spokane area — that's the whole bar for a page here. We check that registration against the state's own record and date the check on this page, so you can see for yourself how current it is. Sonic Air Duct rates 4.8 out of 5 on Google across 204 reviews, and this page links straight to those reviews so you can read them for yourself.